Category
Chemical Primary Standard
CAS Number
98-59-9
Molecular Formula
C7H7ClO2S
Molecular Weight
190.65 g/mol
Synonym

Tosyl Chloride; 4-Methylbenzenesulfonyl Chloride; p-Tolylsulfonyl Chloride; p-​Methylphenylsulfonyl Chloride; p-Toluenesulfochloride;

Keywords
Miscellaneous compounds
Slide_1

p-Toluenesulfonyl Chloride (p-TsCl) is an important organic reagent used to convert alcohols into tosylates, making them better leaving groups in substitution and elimination reactions. It is widely applied in organic synthesis and pharmaceutical chemistry for protection of alcohols, synthesis of sulfonamides, and facilitating nucleophilic substitution reactions.